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X18Sensibly equivalent¶ to:
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The X18 is a battery heptode frequency changer or mixer. It was designed for AM broadcast radio reception on the short, medium and long wave bands.The oscillator feed needs to 15 volts pk-pk.The thin glass tube envelope is 20 mm in diameter and, excluding the B7G base pins, is 47 mm tall.References: Data-sheet. Type X18 was first introduced in 1954. See also 1954 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | f(-) | a | g2 | g1 | g4 | g3 | f(+),g5 |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | mAs | ra | gm |
| 1.4 | 0.05 | 90 | 67.5 | 0.0 | 1.15 | 2.85 | 0.6M | 0.32 |
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Updated January 18, 2013.
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